This is probably one of the most asked sexual questions by males. TeenHealthFX has answered the question of penis size and testes size in the past. Men seem to be concerned by the size of their penis which ironically most women say is unimportant.
Most penises of fully mature adult males are between four and eight inches when erect. This is based on measuring the upper side from the pubic bone to the tip of the penis (including the testicles is cheating!). It might help to know that the erection is considered the great equalizer. Those men whose penises are smaller when soft have a greater size increase when they become erect compared with those men who have larger penis in the soft stage. The size difference is less dramatic if you compare them when erect. Remember this the next time you are feeling insecure in the locker room.
Testicles generally take the shape and size of an egg. A man?s testicle size has no bearing on fertility, orgasm, ejaculation or anything else other then appearance. In most men, one testicle is slightly larger or hangs lower than the other.